Center Tamping; Determining Tamper Home Position; Tamping - Lexmark X850e Service Manual

7500-XXX

Center tamping

Center tamping is used when executing rear stapling (straight).
The tamper positions during center tamping are shown below.
Sensor (front tamper HP)
Front tamper motor
Position Description
1 Front tamper home position–sensor (front tamper HP)
2 Front tamper standby position
3 Front tamper tamping position
4 Front tamper offset position
5 Rear tamper home position–sensor (rear tamper HP)
6 Rear tamper standby position
7 Rear tamper size position
8 Rear tamper offset position

Determining tamper home position

When the sensor (lower media exit) turns high (+5 V dc) (light receiving), the front and rear tamper motors on
the compiler unit assembly are activated, and the front and rear tampers start moving.
The front tamper home position is determined when the front tamper enters the sensor (front tamper HP)
sensing area.
In the same way, the rear tamper home position is determined when the rear tamper enters the sensor (rear
tamper HP) sensing area.

Tamping

Tamping is executed after a preset time has passed after the sensor (compiler media present) turns high
(+5 V dc) when media is detected on the compiler unit assembly.
1-20
MFP Finisher Service Manual
Front
Front tamper
Sensor (rear tamper HP)
Rear
Rear tamper
Rear tamper motor